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phy: rockchip-inno-usb2: add support of u2phy for rk3328

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The u2phy driver of kernel 4.4 need add config and specific tuning
for rk3328. This patch add support of u2phy for rk3328.

Change-Id: Ie1bdfc0fde37d7d0b26d0f3aac136481bd6f4c44
Signed-off-by: Meng Dongyang <daniel.meng@rock-chips.com>
This commit is contained in:
Meng Dongyang
2016-12-30 11:45:20 +08:00
committed by Huang, Tao
parent bbcf1b34d3
commit 591482d01f
1 changed files with 41 additions and 0 deletions
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41
drivers/phy/phy-rockchip-inno-usb2.c
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@@ -1364,6 +1364,26 @@ disable_clks:
return ret;
}
static int rk3328_usb2phy_tuning(struct rockchip_usb2phy *rphy)
{
int ret;
/* Open debug mode for tuning */
ret = regmap_write(rphy->grf, 0x2c, 0xffff0400);
if (ret)
return ret;
/*
* Open HS pre-emphasize function to increase
* HS slew rate for host port
*/
ret = regmap_write(rphy->grf, 0x30, 0xffff851d);
if (ret)
return ret;
return 0;
}
static int rk3366_usb2phy_tuning(struct rockchip_usb2phy *rphy)
{
unsigned int open_pre_emphasize = 0xffff851f;
@@ -1475,6 +1495,26 @@ static const struct dev_pm_ops rockchip_usb2phy_dev_pm_ops = {
#define ROCKCHIP_USB2PHY_DEV_PM NULL
#endif /* CONFIG_PM_SLEEP */
static const struct rockchip_usb2phy_cfg rk3328_phy_cfgs[] = {
{
.reg = 0x100,
.num_ports = 2,
.phy_tuning = rk3328_usb2phy_tuning,
.clkout_ctl = { 0x108, 4, 4, 1, 0 },
.port_cfgs = {
[USB2PHY_PORT_HOST] = {
.phy_sus = { 0x104, 15, 0, 0, 0x1d1 },
.ls_det_en = { 0x110, 1, 1, 0, 1 },
.ls_det_st = { 0x114, 1, 1, 0, 1 },
.ls_det_clr = { 0x118, 1, 1, 0, 1 },
.utmi_ls = { 0x120, 17, 16, 0, 1 },
.utmi_hstdet = { 0x120, 19, 19, 0, 1 }
}
},
},
{ /* sentinel */ }
};
static const struct rockchip_usb2phy_cfg rk3366_phy_cfgs[] = {
{
.reg = 0x700,
@@ -1584,6 +1624,7 @@ static const struct rockchip_usb2phy_cfg rk3399_phy_cfgs[] = {
};
static const struct of_device_id rockchip_usb2phy_dt_match[] = {
{ .compatible = "rockchip,rk3328-usb2phy", .data = &rk3328_phy_cfgs },
{ .compatible = "rockchip,rk3366-usb2phy", .data = &rk3366_phy_cfgs },
{ .compatible = "rockchip,rk3399-usb2phy", .data = &rk3399_phy_cfgs },
{}